Effective irrigated area

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August undefined, 2024

WebMay 6, 2024 · Irrigation & Water Use. According to a U.S. Geological Survey report, agriculture is a major user of ground and surface water in the United States, and irrigation accounted for 42 percent of the Nation’s … WebIn year 2005 the effective irrigation area was 56 562 360 ha in thus about 11 percent smaller than total area equipped for irrigation, while only 47 968 730 ha of the …

Soil, Water and Crop Characteristics Important to Irrigation Scheduling

WebNov 1, 2024 · ly, when P w as approximately equal to the effective irrigated area ratio in the yearbook (Cheng, 1996–2016), the corresponding distance l was used to determine the irrigated areas. In these ... WebJun 1, 2024 · water diversion capacity of the irrigation area is about 150 m 3 /s, and the effective irrigation area involves 9 counties (districts) in Kaifeng and Shangqiu: Xiangf u District, Lankao County, Qi ... is sine applicable for all triangles

Agricultural irrigated land (% of total agricultural land) - IndexMundi

WebIn year 2005 the effective irrigation area was 56 562 360 ha in thus about 11 percent smaller than total area equipped for irrigation, while only 47 968 730 ha of the … WebSep 1, 2014 · The effective irrigation area was predicted to be 1.583 million hectares in 2024, very close to the predicted upper limit of 1.588 million hectares. WebAug 24, 2024 · Canals can be an effective source of irrigation in areas of low relief, deep fertile soils, perennial source of water and an extensive command area. ... The percentage of canal irrigation area to total … is sine an operator

Analysis on the influencing factors of effective utilization ...

Webthe ratio between irrigation water actually utilized by growing crops and water diverted from a source (as a stream) in order to supply such… See the full definition Merriam-Webster … WebJun 1, 2013 · Since 1949, the Chinese government has paid much attention to the development of irrigation infrastructure. The effective irrigated area of China was around 15 million ha in the early 1950s but increased sharply to 44.04 million ha by 1985 and to 60.35 million ha by 2010 (MWR, 2011a, State Statistics Bureau, 2010 MWR, 2011a). … is sine and cosine the sameWebApr 3, 2024 · The aim of this research is to find out the effects of different degrees of drought stress on the growth index and yield of semi-late rice. In this experiment, a pot experiment was conducted with hybrid Tian-you-hua-zhan rice as material. Intermittent irrigation was used as control (CK) at the tillering stage, booting stage, heading stage, … is sinema going to vote for reconciliation

"WebNov 5, 2013 · (49,420 ac) with an effective irrigated area . of 15.8 million ha (39 million ac) (NSBC . 2012). The total area of water-saving irri-gation had grown to 24.4 million ha (60.3 . " - Effective irrigated area

Effective irrigated area

Research on early warning and control measures for

Webeffective irrigated area of medium-sized irrigation areas across the province. This figure is above 10%. The number of small-sized irrigation areas is 122 (including 26 sample … WebOct 14, 2024 · We analyzed spatiotemporal variation in irrigation water requirement, irrigation demand index (IDI), and the proposed regional optimization of irrigation water …

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WebExamples of Irrigated area in a sentence. Irrigated area classifications fall into two categories: (1) surface water irrigation with main water sources being rivers, canals, …

WebDec 4, 2012 · The effective irrigation area is an important index because 75 % of grain is produced on irrigated land in China (Tong et al. 2003). Cropland conversion areas for different irrigation levels for the periods 1990–2000 and … WebOct 1, 2024 · Finally, total mechanical power, effective irrigation area, and chemical fertiliser were the primary factors at the large river basin level. Path analysis indicated that total mechanical power, effective irrigated area, and irrigation water utilisation rate had a negative effect on green WFP on all spatial levels, while the effects of rainfall ...

WebAug 6, 2024 · The effective irrigation area () refers to the area of cultivated land with certain water source, relatively flat land, irrigation engineering or equipment, and can be … Webpurpose is to obtain and distribute water. irrigation district. governed by an elected board of directors. irrigation district. non-profit entity, but can maintain cash reserve. irrigation district. has power to levy taxes. irrigation district. group of agencies that work together to set bay-delta water quality standards and issues.

WebOct 1, 2024 · The irrigated area of Zhu-map matches well with the provincial statistics, but the agreement is relatively low at the mapping unit level. ... Furthermore, the statistics represent the effective irrigated area, i.e., the area equipped for irrigation, rather than the actual irrigated area, which may lead to biased results. In fact, ...

WebOct 26, 2024 · In these areas in the simulation, irrigation water was obtained from rivers or reservoirs through ditches or canals. According to the effective irrigation area ratio of 61.7% in the study area (Song, 2004), the longest distance between crops and the nearest rivers was 0.77 km (Figure 2). Based on this distance, the general distribution of ... if a lithium ion battery discharges too muchWebObservations show that effective irrigated areas are decreasing in most of the provinces in China. A large amount of water resources is consumed by agricultural irrigation, which is a major cause of decreases in streamflow in northern China. In turn, the shortage of water resources limits the irrigated area expansion in northern China. i fall anywhere when i\u0027m by your sideWebMar 11, 2024 · The measured data of effective utilization coefficient of irrigation water, effective irrigated area, water-saving area ratio (ratio of irrigated area to total irrigated … is sine hypotenuse over oppositeWebTotal Irrigated Area (acre) Max field elevation gain Max. field elevation gain Height of Pivot Pipeline burial depth @ pivot ... not radius. For example, the effective radius of an 0.75" SR100 end gun with a booster pump that maintains 50 psi is 0.75x 245 /2=91.9 ft (Valley software lists that as 91.4 ft for some reason, probably taking a ... if all around you are losing their headsWebOct 7, 2024 · This study used the effective irrigated area of apples in each province to characterize the conditions of their apple irrigation facilities. Moreover, according to the agricultural location theory, the geographic distance of agricultural production and sales determines the land use structure. As a high-value agricultural product (HVP), apple is ... i fall apart youtubeWebJun 29, 2024 · In the MIRCA2000 data set, the irrigated crops represent the crops in the well-equipped irrigation districts; according to the report of Li et al. , the effective irrigated area occupies 76% in the irrigation districts of the YRB, hence, the irrigation efficiency of irrigated crops is determined as 0.75. However, the crops outside the ... is sinema a mormonWebJan 2, 2024 · Irrigated area must be doubled from 12 to 24 million hectares, and water productivity from irrigated and rainfed agriculture must rise by at least 60% to meet … if a litmus paper turns red